Our review:

Item Description:
Find Out Before You're Flooded!So the sump pump quits and because you don't live in your basement you're never the wiser.  The result?  A flooded basement!Now build a cute little water sensor alarm to let you know!  Simply mount the alarm in the area you want to sense water and the moment it touches the contacts the included alarm will sound.The sensor can be remotely located by cutting that section of the board if desired.  Runs on 9V battery (not included).  Size 1.8 x 2.8.  From Velleman.

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